3 years ago

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Mathematics

1 answer:

Ne4ueva [31]3 years ago

3 0

Answer:

Please what are you trying to say

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An object is launched at 25 m/s from a height of 80 m. The equation for the height (h) in terms of time (t) is given by h(t)= -4

Reptile [31]

Use the formula for finding axis of symmetry:

-b -25 -25
x = ------ ⇒ --------- = -------- = 2.6
2a 2(-4.9) -9.8

5 0

3 years ago

Information on a packet of seeds, which may not be a random sample of seeds, claims that the germination rate is 94%. What's

Evgesh-ka [11]

Answer:

0.1052

Step-by-step explanation:

Given that proportion of germination in the population is 94% =0.94

p = 0.96

Sample size = 220

Std dev of p = $\sqrt{\frac{pq}{n} } \\=0.016$

The probability that more than 96% of the 220 seeds in the packet will germinate

= $P(p\geq 0.96)\\=P(Z\geq \frac{0.96-0.94}{0.016})\\=P(Z\geq 1.25)\\==1-0.8948\\=0.1052$

Assumptions are np and nq >5 and also sample size >220 hence normal

7 0

3 years ago

What is the measure of AB in O below?

8_murik_8 [283]

Answer:

The measure of an arc is equal to the angle opposite it

Therefore the answer is C. 100°

Hope this helps!

8 0

3 years ago

Find the Percent Change from 75 Yards to 54 Yards

marin [14]

Answer:

Step-by-step explanation:

6 0

3 years ago

Expression is equivalent to 486 – 9 + 6 + 33 × 2

mojhsa [17]

Answer:

549

Step-by-step explanation:

A calculator can give you an equivalent expression.

I might work from the middle outward:

= 486 -3 +33×2

= 483 +66

= (480 +60) + (3 +6)

= 540 + 9

= 549

7 0

3 years ago